Home HIV NRTIs PIs Resistance Glossary
NNRTIs References
Transmission, signs and symptoms

Facts and Figures

  • 1981 - First cases of acquired immune deficiency syndrome (AIDS) reported.
  • 1983 - Agent now known to be responsible for AIDS called human immunodeficiency virus (HIV), was isolated and identified.
  • There are at least two types of HIV, HIV-2 which is mainly found in West Africa, and HIV-1 which is more virulent and causes the most AIDS worldwide.
  • HIV generally leads to a depletion of CD4 T cells (a type of white blood cell).
  • As of January 1999, there were an estimated 30 to 40 million cases of HIV worldwide
  • The number of infected people worldwide continues to grow at an alarming rate:

Map of newly infected, 2001